Excel没有以正确的格式导出

我正在试图导出数据使用jsp的excel。 但是它不能以excel格式正确导出，整个html页面正在导出。 我不知道如何使用任何关于Apache POI。 我正在使用下面的代码

response.setHeader("Content-Disposition", "attachment;filename=name.xls"); response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet); 

Answer 1

检查这个教程

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你需要使用POI Libary，然后你可以通过一个简单的代码写入任何数据到excel文件，如下所示：

 //Blank workbook XSSFWorkbook workbook = new XSSFWorkbook(); //Create a blank sheet XSSFSheet sheet = workbook.createSheet("Employee Data"); //This data needs to be written (Object[]) Map<String, Object[]> data = new TreeMap<String, Object[]>(); data.put("1", new Object[] {"ID", "NAME", "LASTNAME"}); data.put("2", new Object[] {1, "Amit", "Shukla"}); data.put("3", new Object[] {2, "Lokesh", "Gupta"}); data.put("4", new Object[] {3, "John", "Adwards"}); data.put("5", new Object[] {4, "Brian", "Schultz"}); //Iterate over data and write to sheet Set<String> keyset = data.keySet(); int rownum = 0; for (String key : keyset) { Row row = sheet.createRow(rownum++); Object [] objArr = data.get(key); int cellnum = 0; for (Object obj : objArr) { Cell cell = row.createCell(cellnum++); if(obj instanceof String) cell.setCellValue((String)obj); else if(obj instanceof Integer) cell.setCellValue((Integer)obj); } } try { //Write the workbook in file system FileOutputStream out = new FileOutputStream(new File("howtodoinjava_demo.xlsx")); workbook.write(out); out.close(); System.out.println("howtodoinjava_demo.xlsx written successfully on disk."); } catch (Exception e) { e.printStackTrace(); }